Home / 697,278.21-1,045,779.59-191,708.81

Finding the Fourth Proportional to 697,278.21, 1,045,779.59 and 191,708.81

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Solution

The fourth proportional to 697,278.21, 1,045,779.59 and 191,708.81 is: 287,525.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,278.21 : 1,045,779.59 = 191,708.81 : x
  2. Step 2: Convert to fraction form
    697,278.21/1,045,779.59 = 191,708.81/x
  3. Step 3: Cross multiply
    697,278.21x = 1,045,779.59 × 191,708.81
  4. Step 4: Simplify right side
    697,278.21x = 200,485,154,533.75
  5. Step 5: Solve for x
    x = 200,485,154,533.75/697,278.21
  6. Step 6: Final answer
    x = 287,525.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.